Concurrent Validity of The Expanded Cutting Alignment Scoring Tool (E-CAST)
# Background The Expanded Cutting Alignment Scoring Tool (E-CAST) has been previously shown to be reliable when assessing lower extremity alignment during a 45-degree sidestep cut, however, the validity of this tool remains unknown. The purpose of this study was to assess the concurrent validity of...
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| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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North American Sports Medicine Institute
2023-10-01
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| Series: | International Journal of Sports Physical Therapy |
| Online Access: | https://doi.org/10.26603/001c.87633 |
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| _version_ | 1825197041533321216 |
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| author | Lauren Butler Alexa Martinez Ashley Erdman Dai Sugimoto Alex Loewen Eryn Milian Charles Wyatt Kristin Hayden Amie DeVerna Kirsten Tulchin-Francis Sophia Ulman |
| author_facet | Lauren Butler Alexa Martinez Ashley Erdman Dai Sugimoto Alex Loewen Eryn Milian Charles Wyatt Kristin Hayden Amie DeVerna Kirsten Tulchin-Francis Sophia Ulman |
| author_sort | Lauren Butler |
| collection | DOAJ |
| description | # Background
The Expanded Cutting Alignment Scoring Tool (E-CAST) has been previously shown to be reliable when assessing lower extremity alignment during a 45-degree sidestep cut, however, the validity of this tool remains unknown. The purpose of this study was to assess the concurrent validity of the E-CAST by comparing visually identified movement errors from two-dimensional (2D) video with three-dimensional (3D) biomechanical variables collected using motion capture.
# Study Design
Cross Sectional
# Methods
Sixty female athletes (age 14.1 ± 1.5 years) who regularly participated in cutting/pivoting sports performed a sidestep cut with 2D video and 3D motion capture simultaneously recording. One clinician scored the 2D videos for each limb using the E-CAST criteria. Joint angles and moments captured in 3D were computed for the trunk and knee. Receiver operating characteristic (ROC) curve analyses were performed to determine the accuracy of each E-CAST item and to provide cut-off points for risk factor identification.
# Results
ROC analyses identified a cut-off point for all biomechanical variables with sensitivity and specificity ranging from 70-85% and 55-89%, respectively. Across items, the area under the curve ranged from 0.67 to 0.91.
# Conclusion
The E-CAST performed with acceptable to outstanding area under the curve values for all variables except static knee valgus.
# Level of evidence
3b |
| format | Article |
| id | doaj-art-c53fb532cf5940c9a7f201928b08344d |
| institution | Kabale University |
| issn | 2159-2896 |
| language | English |
| publishDate | 2023-10-01 |
| publisher | North American Sports Medicine Institute |
| record_format | Article |
| series | International Journal of Sports Physical Therapy |
| spelling | doaj-art-c53fb532cf5940c9a7f201928b08344d2025-02-11T20:27:27ZengNorth American Sports Medicine InstituteInternational Journal of Sports Physical Therapy2159-28962023-10-01185Concurrent Validity of The Expanded Cutting Alignment Scoring Tool (E-CAST)Lauren ButlerAlexa MartinezAshley ErdmanDai SugimotoAlex LoewenEryn MilianCharles WyattKristin HaydenAmie DeVernaKirsten Tulchin-FrancisSophia Ulman# Background The Expanded Cutting Alignment Scoring Tool (E-CAST) has been previously shown to be reliable when assessing lower extremity alignment during a 45-degree sidestep cut, however, the validity of this tool remains unknown. The purpose of this study was to assess the concurrent validity of the E-CAST by comparing visually identified movement errors from two-dimensional (2D) video with three-dimensional (3D) biomechanical variables collected using motion capture. # Study Design Cross Sectional # Methods Sixty female athletes (age 14.1 ± 1.5 years) who regularly participated in cutting/pivoting sports performed a sidestep cut with 2D video and 3D motion capture simultaneously recording. One clinician scored the 2D videos for each limb using the E-CAST criteria. Joint angles and moments captured in 3D were computed for the trunk and knee. Receiver operating characteristic (ROC) curve analyses were performed to determine the accuracy of each E-CAST item and to provide cut-off points for risk factor identification. # Results ROC analyses identified a cut-off point for all biomechanical variables with sensitivity and specificity ranging from 70-85% and 55-89%, respectively. Across items, the area under the curve ranged from 0.67 to 0.91. # Conclusion The E-CAST performed with acceptable to outstanding area under the curve values for all variables except static knee valgus. # Level of evidence 3bhttps://doi.org/10.26603/001c.87633 |
| spellingShingle | Lauren Butler Alexa Martinez Ashley Erdman Dai Sugimoto Alex Loewen Eryn Milian Charles Wyatt Kristin Hayden Amie DeVerna Kirsten Tulchin-Francis Sophia Ulman Concurrent Validity of The Expanded Cutting Alignment Scoring Tool (E-CAST) International Journal of Sports Physical Therapy |
| title | Concurrent Validity of The Expanded Cutting Alignment Scoring Tool (E-CAST) |
| title_full | Concurrent Validity of The Expanded Cutting Alignment Scoring Tool (E-CAST) |
| title_fullStr | Concurrent Validity of The Expanded Cutting Alignment Scoring Tool (E-CAST) |
| title_full_unstemmed | Concurrent Validity of The Expanded Cutting Alignment Scoring Tool (E-CAST) |
| title_short | Concurrent Validity of The Expanded Cutting Alignment Scoring Tool (E-CAST) |
| title_sort | concurrent validity of the expanded cutting alignment scoring tool e cast |
| url | https://doi.org/10.26603/001c.87633 |
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